At 18: Your onesie is outstanding.
At 25: You throw on a little black dress and look effortlessly awesome.
At 30: You can finally afford that dress that you wanted... and it's perfect.
At 18: You stay up late watching movies with your friends.
At 25: You go to a huge loft party with your friends.
At 30: You get gussied up for a swanky dinner and drinks on the town.
At 18: You're still working out your dance moves.
At 30: The only dancing you do is in your chair at work.
At 18: You kiss whatever cutie is nearby.
At 25: You kiss your date.
At 30: You kiss your significant other... who says you have nacho breath.
At 18: You make 25 different resolutions (and keep none of them).
At 25: You narrow it down to a few important ones.
At 30: You resolve never to make a resolution again.
6.
When your parents call you at midnight:
At 18: Um, you're a little busy right now!
At 25: You're REALLY busy right now.
At 30: You wish them a happy New Year before going out.
At 18: "Has the ball dropped yet? Good."
At 30: You're tucked in by 2 a.m.
At 25: "It's nothing a hamburger can't cure."
At 30: "Please, no. I must hydrate."